In 2012, Bosch will be launching an improved variant of its tried and true ZOH brake caliper. In the new ZOHe (zero offset harmonized evolution) generation, engineers have further improved the rigidity of the caliper and the guidance (system) for the brake pads and housing. As these are especially accurate and smooth-running, the caliper assumes an optimally symmetric position when the brakes are released. This has two advantages: first, clearance is kept very low, which improves pedal feel. Second, residual braking torque is reduced, which in its turn lessens driving resistance and reduces brake-pad wear. Not least, there is less noise and vibration. In its grey iron variant, the new floating caliper model is already 5 percent lighter than the current generation. The aluminium variant is a further 7 percent lighter.